Fixed
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ap...@google.com
It is expected that BackHandler crashes in cases where no LocalOnBackPressedDispatcherOwner
Given that LocalOnBackPressedDispatcherOwner.current is nullable, you can certainly wrap your call to BackHandler in a null check if you'd like to specifically disable that functionality when in @Preview. Of course, you could just provide your own OnBackPressedDispatcherOwner by constructing an OnBackPressedDispatcher instance yourself as part of your @Preview.
Andrey - any thoughts on whether we should have @Preview automatically create and set a LocalOnBackPressedDispatcherOwner as we do for LocalViewModelStoreOwner
pr...@google.com
If you think you want to provide some fake implementation for previews you probably want to provide it somewhere here: https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:compose/ui/ui-tooling/src/androidMain/kotlin/androidx/compose/ui/tooling/preview/ComposeViewAdapter.kt;l=478;drc=38caeffe2a32b6135f231b83c54b109e30bcd474 , and ask Diego for a review.
Note that in previews we do not really support ViewModels in reality. We provide a fake ViewModelStoreOwner, but this implementation just crashes when you try to create a ViewModel. It was a Sergey's idea as usually ViewModels are doing some network/database requests and we don't really support it in the preview mode.
Note that in previews we do not really support ViewModels in reality. We provide a fake ViewModelStoreOwner, but this implementation just crashes when you try to create a ViewModel. It was a Sergey's idea as usually ViewModels are doing some network/database requests and we don't really support it in the preview mode.
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